Improved device for sharpening- saws



vDAVID HUFFMAN, OF LURAY, VIRGINIA.

I Letters Patent No. 83,383, dated October 27, 1868.

IMPROVED DEVICE FOR SHARPENING'SAWS.

The Schedule referred to in these Letters Patent:` and making part lot'the Bama.

To all whom it mal/y concern:

Be it known that I, DAVID HUFFMAN,-0f Luray, inthe county of Page, andState of Virginia, have invented a new and improved Combined Vise andAnvil for lCircular Saws; and I do hereby declare that the following isa full, clear, and exact description oi' the construction and operationof the same, reference beingl had to the accompanying drawings, making apart of this specieation, in whichproeess,avise is necessary. It is'also'equentlyfound A desirable to hal'nmer the teeth after theswaging-pl'ocess, dwing to thek fact that during this process the teethsometimes become chipped and otherwise awed. To eifect thehammeriiig-operation, an anvil is necessary.

My invention, therebre, consists of an anvil and a vise combined, in aneat and poltable shape, for the accomplishment of the above methods oftreating saws.

In the th'awings, A is a block, of cast-iron, of the shape showinwhichisconceived to be a convenient one for the purpose reierred-to.

Longitudinallyo' the block is a slot, a, for the admission of a circularsaw.

-Qu each side of the slot a, and opening into it, are

transverse recesses b b, in which are placed the jaws B B of my vise.

Screws c c pass from each side of the block, through to the jaws B, bymeans of which the said jaws are made to clamp the saw during theswaging-process.

At a suitable distance back of the vise B is an Ianvil, (l, consistingof a steel shaft, with one side attened, passing through a transversehole in the block, and capable of' rotation in said hole, so as toaccommodate its iiattened sini'ace to a tooth of any angle. rlhe underside of the teeth is laid upon this attened part, the block beingshifted to the opposite of the saw when the anvil is t be used.

When a saw is in hand with teeth too small to reach the flattened faceof the anvil, over the round part thereof?, it may be inserted in thegroove cl', cut for the purpose transversely of the anvil, the upper endof said groove heilig at the edge of the iiat face.

This instrument is cheap, neat, and exceedingly convenient, and commendsitself to the approval of every practical mill-man.

Having thus described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

The block A, jaws B B, and screws c c, when constructed and arranged asdescribed, and for the purpose set forth.

To the above specification 'of my invention, I vhave signed my hand,this 27th day of August, 1868. DAVID HUFFMAN. Witnesses GHAs. A. Pnrrrr,S. 0. KEMON.

